The Experts below are selected from a list of 2367 Experts worldwide ranked by ideXlab platform
Carlos Henrique Ataide - One of the best experts on this subject based on the ideXlab platform.
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residual moisture content and separation efficiency optimization in pilot scale vibrating Screen
Powder Technology, 2016Co-Authors: F S Guerreiro, Rubens Gedraite, Carlos Henrique AtaideAbstract:Abstract Vibrating Screening is still one of the main operations considering solid–solid and solid–liquid separation processes. Although it is an equipment of simple design and execution, the full description of a Screening unit operation may be difficult to predict, considering that several operational variables can influence it. Therefore, the main objective of this work was to evaluate the best possible combination between the process variables Screen Aperture size, the volumetric concentration of solids in the feed, and the g-force (measurement of the vibration). This configuration predetermined values for moisture content of the retained material over the Screen and separation efficiency regarding particle size. For this, a suspension of phosphate rock concentrate (with a particle density of 3.25 g/cm 3 and average particle size of 95 μm) was diluted in water to perform the experiments in a pilot-scale vibrating Screen. The results were analyzed statistically and correlations for each response were fit. The highest values of separation efficiency were found with the lowest values of cut-size diameter, which is desirable in terms of separation. A multi-objective optimization in the experimental range was developed, finding the optimal point for the moisture content of 17.29% and the separation efficiency of 86.88%. The effects of Screen Aperture size and g-force had important roles in this study.
F S Guerreiro - One of the best experts on this subject based on the ideXlab platform.
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residual moisture content and separation efficiency optimization in pilot scale vibrating Screen
Powder Technology, 2016Co-Authors: F S Guerreiro, Rubens Gedraite, Carlos Henrique AtaideAbstract:Abstract Vibrating Screening is still one of the main operations considering solid–solid and solid–liquid separation processes. Although it is an equipment of simple design and execution, the full description of a Screening unit operation may be difficult to predict, considering that several operational variables can influence it. Therefore, the main objective of this work was to evaluate the best possible combination between the process variables Screen Aperture size, the volumetric concentration of solids in the feed, and the g-force (measurement of the vibration). This configuration predetermined values for moisture content of the retained material over the Screen and separation efficiency regarding particle size. For this, a suspension of phosphate rock concentrate (with a particle density of 3.25 g/cm 3 and average particle size of 95 μm) was diluted in water to perform the experiments in a pilot-scale vibrating Screen. The results were analyzed statistically and correlations for each response were fit. The highest values of separation efficiency were found with the lowest values of cut-size diameter, which is desirable in terms of separation. A multi-objective optimization in the experimental range was developed, finding the optimal point for the moisture content of 17.29% and the separation efficiency of 86.88%. The effects of Screen Aperture size and g-force had important roles in this study.
Rubens Gedraite - One of the best experts on this subject based on the ideXlab platform.
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residual moisture content and separation efficiency optimization in pilot scale vibrating Screen
Powder Technology, 2016Co-Authors: F S Guerreiro, Rubens Gedraite, Carlos Henrique AtaideAbstract:Abstract Vibrating Screening is still one of the main operations considering solid–solid and solid–liquid separation processes. Although it is an equipment of simple design and execution, the full description of a Screening unit operation may be difficult to predict, considering that several operational variables can influence it. Therefore, the main objective of this work was to evaluate the best possible combination between the process variables Screen Aperture size, the volumetric concentration of solids in the feed, and the g-force (measurement of the vibration). This configuration predetermined values for moisture content of the retained material over the Screen and separation efficiency regarding particle size. For this, a suspension of phosphate rock concentrate (with a particle density of 3.25 g/cm 3 and average particle size of 95 μm) was diluted in water to perform the experiments in a pilot-scale vibrating Screen. The results were analyzed statistically and correlations for each response were fit. The highest values of separation efficiency were found with the lowest values of cut-size diameter, which is desirable in terms of separation. A multi-objective optimization in the experimental range was developed, finding the optimal point for the moisture content of 17.29% and the separation efficiency of 86.88%. The effects of Screen Aperture size and g-force had important roles in this study.
Jiao Hongguang - One of the best experts on this subject based on the ideXlab platform.
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test and research on optimum configuration of diameter of Screen Aperture and incline of Screen deck
Coal Preparation Technology, 2007Co-Authors: Jiao HongguangAbstract:The tests on optimum configuration of parameters of vibrating Screen deck have been conducted in pilot test system and statistical analysis has also been carried out on the results obtained from the tests by use of Design-Expert 0.1 software and from these,there have been given the correlation of Screening size and Screening efficiency with incline of Screen deck and diameter of Screen Aperture and brought to light interaction of Aperture diameter of Screen and incline of Screen deck to Screening size.It comes up with the scheme of optimum configuration of Screen deck parameters for obtaining maximum Screening efficiency under condition of specially required Screening size.This will provide theoretical reference for design and application of Screen machine.
Fernando J Muzzio - One of the best experts on this subject based on the ideXlab platform.
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effects of mill design and process parameters in milling dry extrudates
Powder Technology, 2015Co-Authors: Aditya U Vanarase, Rizwan Aslam, Fernando J MuzzioAbstract:Abstract An experimental study was performed to characterize two continuous mills for their ability to mill alumina–magnesia extrudates. The effect of mill parameters, namely, the Screen Aperture size, and impeller speed on the particle size distribution of the milled product was quantified for a conical Screen mill and a hammer mill. In general, the conical Screen mill was found to be more sensitive to changes in impeller speed compared to the hammer mill. The effect of impeller speed in case of the hammer mill was non-monotonic while the increasing speeds led to reduction in particle size in case of the cone mill, for the same Screen Aperture size. The effect of Aperture Screen size was observed to play a dominant role in dictating particle size distribution of the product material for both mills. In case of the cone mill, grated type Screens exhibited higher milling capacity than round Screens with equivalent Apertures. Lastly, a study comparing the statistical particle size distribution parameters was performed for process design purposes. It was deduced that, if the desired particle size is greater, the comil provides a narrower particle size distributions than the hammer mill; whereas if the desired particle size is smaller, both mills exhibit similar poly-dispersity. The study provided insight into fundamental breakage mechanisms for both mill classes. Breakage in the hammer mill occurs primarily due to the impact of the hammers and large particles may often leak through the mill without sufficient breakage. Breakage in the comil is more gradual as the impeller sweeps a wide area generally ensuring sufficient breakage of particles before they exit the milling chamber.